<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=div, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        *{
            padding: 0;
            margin: 0;
            border: 0;
        }
        @keyframes circle{
            0%{
                transform: rotate(0)
            }
            100%{
                transform: rotate(360deg);
            }
        }
        #box{
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background-color: #0ff;
            position: absolute;
            top: -98px;
            left: -98px;
            animation-name: circle;
            animation-duration: 3s;
            animation-iteration-count: infinite;
            animation-timing-function: linear;
            transform-origin: 174% 174%;
        }
        #road{
            width: 500px;
            height: 500px;
            /* border-radius: 50%; */
            background-size: 100% 100%;
            background-color: rgb(10, 233, 10,0.6);
            margin: 0 auto;
            border: 200px solid red;
            position: relative;
            border-radius: 50%;
        }
        .center{
            position: absolute;
            top: 246px;
            left: 246px;
            width: 8px;
            height: 8px;
            background: red;
            border-radius: 50%;
        }
    </style>
</head>
<body>
    <div id="road">
        <div id="box"></div>
        <div class="center"></div>
    </div>
</body>
</html>